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Physical Constants

 Name Symbol Value Absolute Zero 0 k = -273.15 C Acceleration of gravity g 9.8 m/s2 Avogadro's Number N0 = 6.022 x 1022 Coulomb Constant K = 8.998 x 109Nm2/C2 Electron charge q = 1.602 x 10-19 C Gravitational Constant G = 6.673 x 10-11 Nm2/kg2 Mass of Electron me = 9.109 x 10-31kg Mass of Proton mp = 1.673 x 10-27kg Planck's constant h = 6.626 x 10-34 Js Speed of light in vacuum c = 2.997 x 108 m/s

Units: CGS SI
 Physical Constants Astronomical Constants Planetary Data Mercury Venus Earth Mars Jupiter Saturn Uranus Neptune Pluto

The Units switch above does not change the units of your calculation! It only specifies the units of the constants buttons for future entries!

Astronomical Constants

Name Mass (g) Radius (cm) Period (yr) Semi-Major (AU) Eccentricity
Mercury 3.303 x 1026 2.439 x 108 2.4085 x 10-1 3.87096 x 10-1 0.205622
Venus 4.87 x 1027 6.05 x 108 6.1521 x 10-1 7.23342 x 10-1 0.006783
Earth 5.976 x 1027 6.378 x 108 1.00004 x 100 9.99987 x 10-1 0.016684
Mars 6.418 x 1026 3.397 x 108 1.88089 x 100 1.523705 x 100 0.093404
Jupiter 1.899 x 1030 7.14 x 109 1.18622 x 101 5.204529 x 100 0.047826
Saturn 5.686 x 1029 6 x 109 2.94577 x 101 9.575133 x 100 0.052754
Uranus 8.66 x 1028 2.615 x 109 8.40139 x 101 1.930375 x 101 0.050363
Neptune 1.03 x 1029 2.43 x 109 1.64793 x 102 3.020652 x 101 0.004014
Pluto 1 x 1025 1.2 x 108 2.47686 x 102 3.991136 x 101 0.256695

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